If 5 cats catch 5 mice in 5 minutes, how long will it take one cat to catch a mouse?

Can you find the missing piece of the Porsche?

A word I know,
Six letters contain,
Subtract just one,
And twelve is what remains.

Decode below three cipher riddles:

26 L of the A
7 D of the W
1000 Y in a M

Below toothpicks/matchsticks indicate the group of fishes moving from west to east direction. Can you make them move from east to west by just moving three toothpicks/matchsticks?

Baseball bat and ball cost $100. If the bat cost $99 more than the ball, what is the cost of each?

Alex opened 24 presents
Jonah opened 8 presents
Clara opened 1 present

Can you find out how many presents were opened by Candy?

How many triangles can you count in the figure given?

What question can you never answer yes to?

I am a mother. However, I never give birth.

I am a father. However, I never nurse my children.

Wandering is not possible for me, but standing still happens occurs rarely.

Who am I?